Compilare: user.cpp: In function 'int conv(char*)': user.cpp:9: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void sortare(char*)': user.cpp:15: warning: comparison between signed and unsigned integer expressions user.cpp:16: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:28: warning: format '%s' expects type 'char*', but argument 3 has type 'char (*)[100]' user.cpp: In function 'int conv(char*)': user.cpp:8: warning: 'x' may be used uninitialized in this function